Service supplied by electric utilities

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IAC 9/17/14


Ch , p.



[Prior to 10/8/86, Commerce Commission[250]]

199—20.1(476) General information.

20.1(1) Authorization of rules. Iowa Code chapter 476 provides that the Iowa utilities board shall establish all needful, just and reasonable rules, not inconsistent with law, to govern the exercise of its powers and duties, the practice and procedure before it, and to govern the form, content and filing of reports, documents and other papers necessary to carry out the provisions of this law.

Iowa Code chapter 478 provides that the Iowa utilities board shall have power to make and enforce rules relating to the location, construction, operation and maintenance of certain electrical transmission lines.

The application of the rules in this chapter to municipally owned utilities furnishing electricity is limited by Iowa Code section 476.1B, and the application of the rules in this chapter to electric utilities with fewer than 10,000 customers and to electric cooperative associations is limited by the provisions of Iowa Code section 476.1A.

20.1(2) Application of rules. The rules shall apply to any electric utility operating within the state of Iowa subject to Iowa Code chapter 476, and to the construction, operation and maintenance of electric transmission lines to the extent provided in Iowa Code chapter 478, and shall supersede all tariffs on file with the board which are in conflict with these rules.

These rules are intended to promote safe and adequate service to the public, to provide standards for uniform and reasonable practices by utilities, and to establish a basis for determining the reasonableness of such demands as may be made by the public upon the utilities.

A request to waive the application of any rule on a permanent or temporary basis may be made in accordance with 199—1.3(17A,474,476,78GA,HF2206).

The adoption of these rules shall in no way preclude the board from altering or amending them pursuant to statute or from making such modifications with respect to their application as may be found necessary to meet exceptional conditions.

These rules shall in no way relieve any utility from any of its duties under the laws of this state.

20.1(3) Definitions. The following words and terms when used in these rules, shall have the meaning indicated below:

Acid Rain Program” means the sulfur dioxide and nitrogen oxides air pollution control program established pursuant to Title IV of the Act under 40 CFR Parts 72-78.

Act” means the Clean Air Act, 42 U.S.C. Section 7401, et seq., as amended by Pub. L. 101-549, November 15, 1990.

Affected unit” means a unit or source that is subject to any emission reduction requirement or limitation under the Acid Rain Program, the Clean Air Interstate Rule (CAIR) or the Clean Air Mercury Rule (CAMR), or a unit or source that opts in under 40 CFR Part 74.

Allowance” means an authorization, allocated by the United States Environmental Protection Agency (EPA) under the Acid Rain Program, to emit sulfur dioxide (SO2), any SO2 and nitrogen oxide (NOX) emissions subject to the Clean Air Interstate Rule (CAIR), or mercury (Hg) emissions subject to the Clean Air Mercury Rule (CAMR), during or after a specified calendar year.

Allowance forward contract” is an agreement between a buyer and seller to transfer an allowance on a specified future date at a specified price.

Allowance futures contract” is an agreement between a futures exchange clearinghouse and a buyer or seller to buy or sell an allowance on a specified future date at a specified price.

Allowance option contract” is an agreement between a buyer and seller whereby the buyer has the option to transfer an allowance(s) at a specified date at a specified price. The seller of a call or put option will receive a premium for taking on the associated risk.

Board” means the utilities board.

Clean Air Interstate Rule” or “CAIR” means the requirements EPA published in the Federal Register (70 Fed. Reg. 25161) on May 12, 2005.

Clean Air Mercury Rule” or “CAMR” means the requirements EPA published in the Federal Register (70 Fed. Reg. 28605) on May 18, 2005.

Complaint” as used in these rules is a statement or question by anyone, whether a utility customer or not, alleging a wrong, grievance, injury, dissatisfaction, illegal action or procedure, dangerous condition or action, or utility obligation.

Compliance plan” means the document submitted for an affected source to the EPA which specifies the methods by which each affected unit at the source will meet the applicable emissions limitation and emissions reduction requirements.

Customer” means any person, firm, association, or corporation, any agency of the federal, state or local government, or legal entity responsible by law for payment for the electric service or heat from the electric utility.

Delinquent” or “delinquency” means an account for which a service bill or service payment agreement has not been paid in full on or before the last day for timely payment.

Distribution line” means any single or multiphase electric power line operating at nominal voltage in either of the following ranges: 2,000 to 26,000 volts between ungrounded conductors or 1,155 to 15,000 volts between grounded and ungrounded conductors, regardless of the functional service provided by the line.

Economy energy” is energy bought or sold in a transaction wherein the supplier’s incremental cost is less than the buyer’s decremental cost, and the differential in cost is shared in an equitable manner by the supplier and buyer.

Electric plant” includes all real estate, fixtures and property owned, controlled, operated or managed in connection with or to facilitate production, generation, transmission, or distribution, in providing electric service or heat by an electric utility.

Electric service” is furnishing to the public for compensation any electricity, heat, light, power, or energy.

Emission for emission trade” is an exchange of one type of emission for another type of emission. For example, the exchange of SO2 emission allowances for NOX emission allowances.

Energy” means electric energy measured in kilowatt hours.

Firm power” is power and associated energy intended to be available at all times during the period covered by the commitment.

Gains and losses from allowance sales” are calculated as the difference between the sale price of allowances sold during the month and the weighted average unit cost of inventoried allowances.

Meter” means, unless otherwise qualified, a device that measures and registers the integral of an electrical quantity with respect to time.

Meter shop” is a shop where meters are inspected, repaired and tested, and may be at a fixed location or may be mobile.

Operating reserve” is a reserve generating capacity required to ensure reliability of generation resources.

Operational control energy” is energy supplied by a selling utility to a buying utility for the improvement of electric system operation.

Outage energy” is energy purchased during emergency or scheduled maintenance outages of generation or transmission facilities, or both.

Participation power” means power and associated energy or energy which is purchased or sold from a specific unit or units on the basis that its availability is subject to prorate or other specified reduction if the units are not operated at full capacity.

Peaking power” is power and associated energy intended to be available at all times during the commitment and which is anticipated to have low load factor use.

Power” means electric power measured in kilowatts.

Price hedging” means using futures contracts or options to guard against unfavorable price changes.

Rate-regulated utility” means any utility, as defined in 20.1(3),which is subject to board rate regulation under Iowa Code chapter 476.

Secondary line” means any single or multiphase electric power line operating at nominal voltage less than either 2,000 volts between ungrounded conductors or 1,155 volts between grounded and ungrounded conductors, regardless of the functional service provided by the line.

Service limitation” means the establishment of a limit on the amount of power that may be consumed by a residential customer through the installation of a service limiter on the customer’s meter.

Service limiter” or “service limitation device” means a device that limits a residential customer’s power consumption to 3,600 watts (or some higher level of usage approved by the board) and that resets itself automatically, or can be reset manually by the customer, and may also be reset remotely by the utility at all times.

Speculation” means using futures contracts or options to profit from expectations of future price changes.

Tariff” means the entire body of rates, tolls, rentals, charges, classifications, rules, procedures, policies, etc., adopted and filed with the board by an electric utility in fulfilling its role of furnishing service.

Timely payment” is a payment on a customer’s account made on or before the date shown on a current bill for service, or on a form which records an agreement between the customer and a utility for a series of partial payments to settle a delinquent account, as the date which determines application of a late payment charge to the current bill or future collection efforts.

Transmission line” means any single or multiphase electric power line operating at nominal voltages at or in excess of either 69,000 volts between ungrounded conductors or 40,000 volts between grounded and ungrounded conductors, regardless of the functional service provided by the line.

Utility” means any person, partnership, business association or corporation, domestic or foreign, owning or operating any facilities for providing electric service or heat to the public for compensation.

Vintage trade” is an exchange of one vintage of allowances for another vintage of allowances with the difference in value between vintages being cash or additional allowances.

Weighted average unit cost of inventoried allowances” equals the dollars in inventory at the end of the month divided by the total allowances available for use at the end of the month.

Wheeling service” is the service provided by a utility in consenting to the use of its transmission facilities by another party for the purpose of scheduling delivery of power or energy, or both.

20.1(4) Abbreviations. The following abbreviations may be used where appropriate:

ANSI—American National Standards Institute, 1430 Broadway, New York, New York 10018.

DOE—Department of Energy, Washington, D.C. 20426.

EPA—United States Environmental Protection Agency.

FCC—Federal Communications Commission, 1919 M Street, Washington, D.C. 20554.

FERC—Federal Energy Regulatory Commission, Washington, D.C. 20426.

NARUC—National Association of Regulatory Utility Commissioners, P.O. Box 684, Washington, D.C. 20044.

NBS—National Bureau of Standards, Washington, D.C. 20234.

NFPA—National Fire Protection Association, 470 Atlantic Ave., Boston, Massachusetts 02210.

[ARC 7976B, IAB 7/29/09, effective 9/2/09]

199—20.2(476) Records, reports, and tariffs.

20.2(1) Location and retention of records. Unless otherwise specified by this chapter, all records required by these rules shall be kept and preserved in accordance with the applicable provisions of 199—Chapter 18.

20.2(2) Tariffs to be filed with the board. The schedules of rates and rules of rate-regulated electric utilities shall be filed with the board and shall be classified, designated, arranged and submitted so as to conform to the requirements of this chapter. Provisions of the schedules shall be definite and so stated as to minimize ambiguity or the possibility of misinterpretation. The form, identification and content of tariffs shall be in accordance with these rules.

Utilities which are not subject to the rate regulation provided for by Iowa Code chapter 476 shall not be required to file schedules of rates, rules, or contracts primarily concerned with a rate schedule with the board and shall not be subject to the provisions related to rate regulations, but nothing contained in these rules shall be deemed to relieve any utility of the requirement of furnishing any of these same schedules or contracts which are needed by the board in the performance of the board’s duties upon request to do so by the board.

20.2(3) Form and identification. All tariffs shall conform to the following rules:

a. The tariff shall be printed, typewritten or otherwise reproduced on 8½- × 11- inch sheets of durable white paper so as to result in a clear and permanent record. The sheets of the tariff should be ruled or spaced to set off a border on the left side suitable for binding. In the case of utilities subject to regulation by any federal agency the format of sheets of tariff as filed with the board may be the same format as is required by the federal agency provided that the rules of the board as to title page; identity of superseding, replacing or revision sheets; identity of amending sheets: identity of the filing utility, issuing official, date of issue, effective date; and the words “Tariff with board” shall apply in the modification of the federal agency format for the purposes of filing with this board.

b. The title page of every tariff and supplement shall show:

(1) The first page shall be the title page which shall show:

(Name of Public Utility)

Electric Tariff

Filed with

Iowa Utilities Board


(This requirement does not apply to tariffs or amendments filed with the board prior to July 1, 1981.)

(2) When a tariff is to be superseded or replaced in its entirety, the replacing tariff shall show on the upper right corner of its title page that it supersedes a tariff on file and the number being superseded or replaced, for example:

tariff no.

supersedes tariff no.

(This requirement does not apply to tariffs or amendments filed with the board prior to July 1, 1981.)

(3) When a new part of a tariff eliminates an existing part of a tariff it shall so state and clearly indicate the part eliminated.

(4) Any tariff modifications as defined above shall be marked in the right-hand margin of the replacing tariff sheet with symbols as here described to indicate the place, nature and extent of the change in text.


(C)—Changed regulation

(D)—Discontinued rate or regulation

(I)—Increase in rate or new treatment resulting in increased rate

(N)—New rate, treatment or regulation

(R)—Reduction in rate or new treatment resulting in reduced rate

(T)—Change in text only

c. All sheets except the title page shall have, in addition to the above-stated requirements, the following information:

(1) Name of utility under which shall be set forth the words “Filed with board.” If the utility is not a corporation, and a trade name is used, the name of the individual or partners must precede the trade name.

(2) Issuing official and issue date.

(3) Effective date (to be left blank by rate-regulated utilities).

d. All sheets except the title page shall have the following form:

(Company Name)

(Part identification)

Electric Tariff

(This sheet identification)

Filed with board

(Canceled sheet identification, if any)


(Content or tariff)

Issued: (Date)


Issued by: (Name, title)

(Proposed Effective Date:)

The issued date is the date the tariff or the amended sheet content was adopted by the utility.

The effective date will be left blank by rate-regulated utilities and shall be determined by the board. The utility may propose an effective date.

20.2(4) Content of tariffs.

a. A table of contents containing a list of rate schedules and other sections in the order in which they appear showing the sheet numbers of the first page of each rate schedule or other section. In the event the utility filing the tariff elects to segregate a section such as general rules from the section containing the rate schedules or other sections, it may at its option prepare a separate table of contents for each such segregated section.

b. A preliminary statement containing a brief general explanation of the utility’s operations.

c. All rates for service with indication for each rate of the type and voltage of service and the class of customers to which each rate applies. There shall also be shown any limitations on loads and type of equipment which may be connected, the net prices per unit of service and the number of units per billing period to which the net prices apply, the period of billing, the minimum bill, any effect of transformer capacity upon minimum bill or upon the number of kWh in any step of the rate, method of measuring demands, method of calculating or estimating loads in cases where transformer capacity has a bearing upon minimum bill or size of rate steps, level payment plan, and any special terms or conditions applicable. The period during which the net amount may be paid before the account becomes delinquent shall be specified. In any case where net and gross amounts are billed, the difference between net and gross is a late payment charge and shall be so specified.

d. The voltage and type of service, (direct current or single or polyphase alternating current) supplied in each municipality, but without reference required to any particular part thereof.

e. Forms of standard contracts required of customers for the various types of service available.

f. If service to other utilities or municipalities is furnished at a standard filed rate, either a copy of each signed contract or a copy of the standard uniform contract form together with a summary of the provisions of each signed contract. The summary shall show the principal provisions of the contract and shall include the name and address of the customer, the points where energy is delivered, rate, term, minimum, load conditions, voltage of delivery and any special provisions such as rentals. Standard contracts for such sales as that of energy for resale, street lighting, municipal athletic field lighting, and for water utilities may be filed in summary form as above outlined.

g. Copies of special contracts for the purchase, sale, or interchange of electrical energy. All tariffs must provide that, notwithstanding any other provision of this tariff or contract with reference thereto, all rates and charges contained in this tariff or contract with reference thereto may be modified at any time by a subsequent filing made pursuant to the provisions of Iowa Code chapter 476.

h. A list of all communities in which service is furnished.

i. The list of service areas and the rates shall be filed in a form to facilitate ready determination of the rates available in each municipality and in unincorporated communities that have service. If the utility has various rural rates, the areas where the same are available shall be indicated.

j. Definitions of classes of customers.

k. Extension rules for extending service to new customers indicating what portion of the extension or cost thereof will be furnished by the utility; and if the rule is based on cost, the items of cost included.

l. Type of construction which the utility requires the customer to provide if in excess of the Iowa electric safety code or the requirements of the municipality having jurisdiction, whichever may be the most stringent in any particular.

m. Specification of such portion of service as the utility furnishes, owns, and maintains, such as service drop, service entrance cable or conductors, conduits, service entrance equipment, meter and socket. Indication of the portions of interior wiring such as range or water heater connection, furnished in whole or in part by the utility, and statement indicating final ownership and responsibility for maintaining equipment furnished by utility.

n. Statement of the type of special construction commonly requested by customers which the utility allows to be connected, and terms upon which such construction will be permitted, with due provision for the avoidance of unjust discrimination as between customers who request special construction and those who do not. This applies, for example, to a case where a customer desires underground service in overhead territory.

o. Rules with which prospective customers must comply as a condition of receiving service, and the terms of contracts required.

p. Rules governing the establishment and maintenance of credit by customers for payment of service bills.

q. Rules governing the procedure followed in disconnecting and reconnecting service.

r. Notice required from a customer for having service discontinued.

s. Rules covering temporary, emergency, auxiliary and stand-by service.

t. Rules covering the type of equipment which may or may not be connected, including rules such as those requiring demand-limiting devices or power-factor corrective equipment.

u. General statement of the method used in making adjustments for wastage of electricity when accidental grounds exist without the knowledge of the customer.

v. Statements of utility rules on meter reading, bill issuance, customer payment, notice of delinquency, and service discontinuance for nonpayment of bill.

w. Rules for extending service in accordance with 20.3(13).

x. If a sliding scale or automatic adjustment is applicable to regulated rates and charges of billed customers, the manner and method of such adjustment calculation shall be covered through a detailed explanation.

y. Rules on how a customer or prospective customer should file a complaint with the utility, and how the complaint will be processed.

z. Rules on how a customer, disconnected customer or potential customer for residential service may negotiate for a payment agreement on amount due, determination of even payment amounts, and time allowed for payments.

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